Fig. 2: Representative time-resolved dual-comb spectra.
The spectra were obtained after the 248-nm irradiation of a flowing mixture of (COCl)2/CH3OH/O2 (1/1.5/20.6, 4.53 Torr, 296 K). The sample point spacing is 146 MHz (~4.87 × 10−3 cm−1) and the temporal resolution is 400 μs.
